| Clue | Source | Date |
|---|---|---|
| Law of ___ (trigonometry rule) | Wall Street Journal | 08 Jul 2023 |
| Secants' reciprocals | The Washington Post Sunday | 01 Dec 2019 |
| Law of ___ (Pythagorean theorem generalization) | Wall Street Journal | 27 Nov 2019 |
| Trig functions | Thomas Joseph | 26 Feb 2019 |
| Fourier series functions | ||
| Trig calculations | ||
| Trig functions | ||
| Trig ratios | ||
| Trig ratios | ||
| Trig table numbers | ||
| Trig functions | ||
| Trig calculations | ||
| Functions of angles | ||
| Items in trigonometry. |